Galvanic battery



(No Model.)

B. J ARRIANT.

GALVANIC BATTERY.

No. 349,222. Patented Sept. 14, 1886.

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Bemba Jarrmnt, 5j.. @46W- N4 vETERS. PhnmLnhographr, wnshiugwn, D4 (LUnirse STATES PATENT Fries.

BENOIT YJAR-RIANT, OF PARIS, FRANCE, ASSIGNOR, BY MESN E ASSIGNMENTS, TOTHE CHEll'IICAL ELECTRIC LIGHT AND POVER COB'IPANY, OF PORT- LAND,MAINE.

GALVANIC BATTERY.

SPECIFICATION forming part of Letters Patent No. 349,222, datedSeptember 14, 1886.

Application filed 'May Il, 1886. Serial No. 201,399. (No modeLl Patentedin France January l2, 1852,

Nol-16,311, and in England April 1882, No. 1,956.

To all whom, t may concern:

Be it known that I, BENOIT .TARRIANL of Paris, France, have invented anImprovement in Galvanic Batteries,-oi` which the'folibwing description,in connection with the accompanying drawings, is a specification, likeletters on the drawings representing like parts.

The object ot' this invention relating to gal- Vanic batteries is toproduce a battery having great constancy in action and capable ofgenerating powerful electric currents at moderate expense. Thesingleliquid batteries in which bichroniate of potash is used as a part of theexciting and depolarizing Huid are unsuitable for electric lighting orother similar purposes requiring the battery to work on a closed circuitfor a considerable period of time, ou account of the inconstaucy andrapid weakening ol' the current.

The present invention consists mainly in a new exciting and depolarizingiluid, the main novelty ol' which consists in the employment ofbichrornate of soda as the depolarizing agent. The exciting anddepolarizing iiuid may consist of the following materials, in about theproportions stated, namely: bichromate of soda mixed with about threetimes its weight of sulphuric acid at about sixtysix degrees strength,and about ten times its weight of water. A iuid of this kindco-operating with the usual carbon and Vzinc elements of the batterywill produce a current that is far more eiective than that of theWell-known bichromate-of-potash batteries, and of far greater constancyand duration. For the purpose of illustration a galvanic battery isshown which I believe has novel features of construction, but which arenot herein claimed, and it is obvious that the novel battery-fluidforming the subject of this invention is equally ap` plicable tobatteries of other construction than that shown. p v

Figure lis aside elevation, partly in section, of two cells forming apart of the galvanic battery that may be used with the tluid embodyingthis invention; Fig. .2, a horizontal the battery; Fig. 4, a verticalsection ofthe electrodes or elements of the battery; Fig. 5, ahorizontal section on line m, Fig. 4, of the positive or Zinc element ofthe battery 5 Fig. 6, a detail to be referred to.

As shown in this instance, the battery-fluid y containing bichromate ot`soda is held in aj ar or receptacle, c, (see Fig. 3,) forming one cellot' thev battery, iliade ot' impervious material that will not beattacked by acids-such, for instance, as ebouite or porcelain-aud beingshown as provided with an overliow-pipe, a, which limits the height towhich the batteryiiuid can rise in the said cell, as indicated in Fig.3, the said iuid not being represented in the other figures for the sakeof greater clearness. The iiuid may be introduced into the cells fromtime to time, as required, by means ol' pipes b, leading l'rom asuitable reservoir and arranged to deliver the fresh fluid at the lowerpart ofthe receptacle. The positive pole (negative element) is shown ascomposed oi' i'our carbon plates, c, connected at the top by a collar orframe, d, which may be lead or other metal, galvanized or tinned, andprojects from the carbon plates so as to rest on the upper edges ofthecell a, and support the said plates therein, as clearly shown in Figs. land 2. The said frame d has attached to it and in electricalcommunication with it a tube, e, (best shown in Fig. 4,) containingmercury, in which the connecting-conductor f from the positive elementor electrode (negative pole) g of the next cell can. rise and fall andmaintain electrical communic ation between the said positive andnegative elements or electrodes, while the positive element is raised orlowered in order to remove it from or place it in the battery-duid forthe purpose ot' stopping or of starting the ing` eell, as shown in Fig..t. The vessel g contains pieces g of zinc, and also contains mercury,as shown at g3, Fig. Jr, which keeps the '/.ine properly amalgamated andforms an eftieient electrical eonneetion between the different piecesot` zine and the Conductor 71,. The battery is also shown as containingother appliances for improving` and facilitating` its aetion-sueh, t'orinstance, as tubes m, for suppl ying air to the surfaeeof the carbon,and tubes n, which may be used for pumping out or drawing ott' the fluidfrom the Cells, and connectingbars p, (see Fig. 6,) of insulating`material, for meehanically eonneeting the positive elements g of anumber ot' cells, so that the)Y all ma)v be raised or loweredsinniltaneously. These fcatures and appliances are not, however, claimedin the present applicatifm, and will bc morc

